Tested-by: Florian Echtler <floe@xxxxxxxxxxxxxx>
On 17.09.2012 12:31, David Herrmann wrote:
The Nintendo Balance-Board is a controller which behaves exactly like the
Wii Remote but reports all its data through a special extension device.
Hence, we can simply add the Balance-Board as extension device and we get
full support for it.
Signed-off-by: David Herrmann <dh.herrmann@xxxxxxxxxxxxxx>
---
Hi Jiri
This has been tested by Florian Echtler (see CC) and user-space BlueZ patches to
support Balance-Board connections are already sent upstream.
Maybe Florian can provide a "Tested-by: Florian Echtler <floe@xxxxxxxxxxxxxx>"
line.
Thanks!
David
drivers/hid/hid-wiimote-ext.c | 59 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
index 0a1805c..ae022b8 100644
--- a/drivers/hid/hid-wiimote-ext.c
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -34,6 +34,7 @@ enum wiiext_type {
WIIEXT_NONE, /* placeholder */
WIIEXT_CLASSIC, /* Nintendo classic controller */
WIIEXT_NUNCHUCK, /* Nintendo nunchuck controller */
+ WIIEXT_BALANCE_BOARD, /* Nintendo balance board controller */
};
enum wiiext_keys {
@@ -151,6 +152,8 @@ static __u8 ext_read(struct wiimote_ext *ext)
type = WIIEXT_NUNCHUCK;
else if (rmem[0] == 0x01 && rmem[1] == 0x01)
type = WIIEXT_CLASSIC;
+ else if (rmem[0] == 0x04 && rmem[1] == 0x02)
+ type = WIIEXT_BALANCE_BOARD;
}
wiimote_cmd_release(ext->wdata);
@@ -509,6 +512,55 @@ static void handler_classic(struct wiimote_ext *ext, const __u8 *payload)
input_sync(ext->input);
}
+static void handler_balance_board(struct wiimote_ext *ext, const __u8 *payload)
+{
+ __s32 val[4];
+
+ /* Byte | 8 7 6 5 4 3 2 1 |
+ * -----+--------------------------+
+ * 1 | Top Right <15:8> |
+ * 2 | Top Right <7:0> |
+ * -----+--------------------------+
+ * 3 | Bottom Right <15:8> |
+ * 4 | Bottom Right <7:0> |
+ * -----+--------------------------+
+ * 5 | Top Left <15:8> |
+ * 6 | Top Left <7:0> |
+ * -----+--------------------------+
+ * 7 | Bottom Left <15:8> |
+ * 8 | Bottom Left <7:0> |
+ * -----+--------------------------+
+ *
+ * These values represent the weight-measurements of the Wii-balance
+ * board with 16bit precision.
+ *
+ * The balance-board is never reported interleaved with motionp.
+ */
+
+ val[0] = payload[0];
+ val[0] <<= 8;
+ val[0] |= payload[1];
+
+ val[1] = payload[2];
+ val[1] <<= 8;
+ val[1] |= payload[3];
+
+ val[2] = payload[4];
+ val[2] <<= 8;
+ val[2] |= payload[5];
+
+ val[3] = payload[6];
+ val[3] <<= 8;
+ val[3] |= payload[7];
+
+ input_report_abs(ext->input, ABS_HAT0X, val[0]);
+ input_report_abs(ext->input, ABS_HAT0Y, val[1]);
+ input_report_abs(ext->input, ABS_HAT1X, val[2]);
+ input_report_abs(ext->input, ABS_HAT1Y, val[3]);
+
+ input_sync(ext->input);
+}
+
/* call this with state.lock spinlock held */
void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
{
@@ -523,6 +575,8 @@ void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
handler_nunchuck(ext, payload);
} else if (ext->ext_type == WIIEXT_CLASSIC) {
handler_classic(ext, payload);
+ } else if (ext->ext_type == WIIEXT_BALANCE_BOARD) {
+ handler_balance_board(ext, payload);
}
}
@@ -551,6 +605,11 @@ static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "motionp+classic\n");
else
return sprintf(buf, "classic\n");
+ } else if (type == WIIEXT_BALANCE_BOARD) {
+ if (motionp)
+ return sprintf(buf, "motionp+balanceboard\n");
+ else
+ return sprintf(buf, "balanceboard\n");
} else {
if (motionp)
return sprintf(buf, "motionp\n");
--
SENT FROM MY PDP-11
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